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  2. Opal - Wikipedia

    en.wikipedia.org/wiki/Opal

    Opal was rare and very valuable in antiquity. In Europe, it was a gem prized by royalty. ... Queensland Boulder opal, Carisbrooke Station near Winton, Queensland.

  3. Koroit opal field - Wikipedia

    en.wikipedia.org/wiki/Koroit_opal_field

    The Koroit opal field is known for the very distinctive type of boulder opal that is found in its mines. In Queensland boulder opal is found within a 300 km wide belt of sedimentary rocks in the Winton Formation. Here opal is found as a kernel in small concretions. [1] The Koroit Opal field was discovered in 1897 by Lawrence Rostron.

  4. Boulder opal - Wikipedia

    en.wikipedia.org/?title=Boulder_opal&redirect=no

    This page was last edited on 22 January 2007, at 11:56 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  5. List of individual gemstones - Wikipedia

    en.wikipedia.org/wiki/List_of_individual_gemstones

    Andamooka Opal, presented to Queen Elizabeth II, also known as the Queen's Opal; Flame Queen Opal; Galaxy Opal; Halley's Comet Opal, the world's largest uncut black opal; Olympic Australis Opal, reported to be the largest and most valuable gem opal ever found

  6. Yowah nut - Wikipedia

    en.wikipedia.org/wiki/Yowah_Nut

    The Yowah opal field in the Shire of Paroo. The Yowah nut is a type of precious opal, found within the Yowah opal fields situated in Yowah, Shire of Paroo, South West Queensland, Australia since the latter part of the 19th century. [1] These opals are known for their distinctive nut-like shape, opalescent patterns, and vibrant colours.

  7. Talk:Opal - Wikipedia

    en.wikipedia.org/wiki/Talk:Opal

    As all knows that opal is a gemstone for Venus(shukra).Their are various categories which shows its effect for the person who wears it. opal reduces negative thoughts,helps to healing from cronic disease and help to improve the affect of impotency in mens due to aging reason or due to bad practices in male at smaller age. opal initiates charm ...

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